Subtraction Number Range Within 50 — Set 76

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                "operand1": 37,
                "operand2": 15,
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                "question": "37 - 15 = ___",
                "answer": 22
            },
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                "id": 4,
                "operand1": 37,
                "operand2": 24,
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                "question": "4 - 2 = ___",
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            {
                "id": 6,
                "operand1": 49,
                "operand2": 1,
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                "id": 7,
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                "answer": 3,
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            {
                "id": 8,
                "operand1": 16,
                "operand2": 1,
                "operator": "-",
                "question": "16 - 1 = ___",
                "answer": 15
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                "id": 9,
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                "operand2": 4,
                "operator": "-",
                "question": "37 - 4 = ___",
                "answer": 33
            },
            {
                "id": 10,
                "operand1": 28,
                "operand2": 10,
                "operator": "-",
                "question": "28 - 10 = ___",
                "answer": 18
            },
            {
                "id": 11,
                "operand1": 18,
                "operand2": 14,
                "operator": "-",
                "question": "18 - 14 = ___",
                "answer": 4
            },
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                "id": 12,
                "operand1": 9,
                "operand2": 8,
                "operator": "-",
                "question": "9 - 8 = ___",
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                "id": 13,
                "operand1": 29,
                "operand2": 21,
                "operator": "-",
                "question": "29 - 21 = ___",
                "answer": 8
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                "id": 14,
                "operand1": 9,
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                "question": "9 - 2 = ___",
                "answer": 7,
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                "id": 15,
                "operand1": 8,
                "operand2": 4,
                "operator": "-",
                "question": "8 - 4 = ___",
                "answer": 4,
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                "operand2": 3,
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                "question": "8 - 3 = ___",
                "answer": 5,
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                "operand2": 44,
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                "question": "49 - 44 = ___",
                "answer": 5
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                "id": 18,
                "operand1": 17,
                "operand2": 2,
                "operator": "-",
                "question": "17 - 2 = ___",
                "answer": 15
            },
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                "id": 19,
                "operand1": 48,
                "operand2": 35,
                "operator": "-",
                "question": "48 - 35 = ___",
                "answer": 13
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                "operand1": 44,
                "operand2": 33,
                "operator": "-",
                "question": "44 - 33 = ___",
                "answer": 11
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